使用bat脚本删除除一个文件循环外的所有文件 [英] Delete all but one file loop with bat script

问题描述

我在批处理文件中有一个循环，可以删除目录中除一个文件外的所有文件（Windows 7）。但是它挂断了，因为它仍然将命令发送到屏幕上，即使我认为我已经抑制了它。这是我正在使用的命令：

I have a loop in a batch file to delete all but one file in a directory (Windows 7). But it hangs up because it still sends the commands to the screen, even though I'd thought I'd suppressed it. Here is the command I'm using:

for %i in (*) do if not %i == UPDATE.BAT del /s %i >nul 2>&1

测试了我的批处理脚本，日志显示了它停在此命令。在命令行中测试了该命令，将 del / s file.ext> nul 2>& 1命令输出到提示符下，提示目录中的每个文件都挂起了。

Tested my batch script, log shows it stops right at this command. Tested the command at the command line, outputs the "del /s file.ext >nul 2>&1" command to the prompt for each file in the directory, which is what causes my batch file to hang.

我需要在这里更改什么？

What do I need to change here?

推荐答案

如果直接在打开的cmd窗口中而不是批处理中，

您可以使用前导 @ 禁止当前命令的输出。

If this is directly in an open cmd window and not a batch,
you can suppres output of the current command with a leading @ sign.

@for %i in (*) do @if /i not "%i"=="UPDATE.BAT" @del "%i" >nul 2>&1

在批处理中切换带有<$ c的命令的输出$ c> @echo off 并将for变量的％符号加倍。

In an batch toggle output of the commands with @Echo off and double the % signs of the for variable.

@Echo off
for %%i in (*) do if /i not "%%i"=="%~nx0" del "%%i" >nul 2>&1

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